Malicious PDF — malware analysis report

Static analysis result for SHA-256 1215c68f587b13fd…

MALICIOUS

PDF

81.3 KB Created: 2021-04-06 21:18:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 73e43d7dbfd7f662e33b47d4f5ecdbdb SHA-1: 2140ea9b0c525ed5a04cfac52ececa5569d09b4a SHA-256: 1215c68f587b13fdc12a20c390b11e99b7c3d3d2845c151682d47132ae536510
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded URLs, with one specifically identified as a known malicious redirector. The document body, though heavily obfuscated, appears to be a lure related to 'Las Meninas ap art history quizlet', aiming to trick users into clicking the malicious link. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://dafemum.ru/wix?keyword=las+meninas+ap+art+history+quizlet In PDF document text
    • http://jolixasij.sportsontheweb.net/82503059956.pdfIn PDF document text
    • http://galoomer.online/toxamuwajotegafuzadujogaxs3pku.pdfIn PDF document text
    • http://duzixofiwisegi.mygamesonline.org/aquaculture_biosecurity.pdfIn PDF document text
    • http://matteset-spon.space/nikon_dx_55-200mm_camera63dzs.pdfIn PDF document text
    • http://lifelalulenomip.mygamesonline.org/cassirer_kant_vida_y_doctrina.pdfIn PDF document text
    • http://carinsusa.info/spectrum_math_workbook_grade_8_free92cvz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370560/normal_60180e706ca4e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379614/normal_5fd7a56491b21.pdfIn PDF document text
    • http://tepifugamokeg.medianewsonline.com/bizagoxavotizipesupo.pdfIn PDF document text
    • http://tuimag.ru/a_simple_forex_trading_system_that_worksx187i.pdfIn PDF document text
    • http://podcard2020.site/cloud_9_vape_shop_greenville_nccrk1r.pdfIn PDF document text
    • http://viwavidif.getenjoyment.net/sijodelolasutiromesosu.pdfIn PDF document text
    • http://zipopajurejep.22web.org/46102012360.pdfIn PDF document text
    • http://zijaditenup.getenjoyment.net/5157773104.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://supanofarex.epizy.com/xanaw.pdfIn PDF document text
    • http://lapetagalelan.myartsonline.com/80695788894.pdfIn PDF document text
    • http://lexafuz.epizy.com/43270546099.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67687c18-5c46-4864-9d36-b58dd6558f16/god_help_the_child_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15045760-f111-432a-8df9-68e6af90a31b/wodupufuvodivujos.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010039.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10039 5280 bytes
SHA-256: 0c899622998dc34a5b2c93a4969447d58b772e5cd1684135d9a8ceb88e50bafb
font_01_sfnt_off00011218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11218 11188 bytes
SHA-256: 9c2bd18d4d0f820394c2eb678454e58a02c26e3126a3e169f8821aeded9bdc93

Open this report in the interactive analyzer, or submit your own file for analysis.